Results 111 to 120 of about 14,195 (271)

Plasmodesmatal frequency in relation to short-distance transport and phloem loading in leaves of barley (Hordeum vulgare). Phloem is not loaded directly from the symplast [PDF]

, 1997
We investigated the phloem loading pathway in barley, by determining plasmodesmatal frequencies at the electron microscope level for both intermediate and small blade bundles of mature barley leaves.
Botha, C E J, Cross, R H M
core   +2 more sources

Cell‐type‐specific gating of gene regulatory modules as a hallmark of early immune responses in Arabidopsis leaves

New Phytologist, EarlyView.
Summary In plants, multiple cell types contribute to immunity, but what division of labor exists among cell types when immunity is activated? We compared, at single‐cell resolution, the response of Arabidopsis thaliana leaf cells during pattern‐triggered and effector‐triggered immunity (PTI/ETI), sampled at 3 and 5 h after infection with Pseudomonas ...
Shanshan Wang, Ilja Bezrukov, Pin‐Jou Wu, Hannah Gauß, Marja Timmermans, Detlef Weigel   +5 more
wiley   +1 more source

Shaping future forests: how can ecophysiology support climate‐smart forest management?

New Phytologist, EarlyView.
Summary Climate change, particularly the associated increase in extreme events and disturbances, threatens the numerous environmental, social, and economic benefits that forests provide, both locally and globally. Heat and drought pose significant risks to forest ecosystems; the anticipated future climate is expected to exacerbate this trend ...
Arthur Gessler, José M. Grünzweig, Laura Bigio, Henrik Hartmann, Nate McDowell, Frank Krumm, Arun K. Bose, Andreas Rigling, Harald Bugmann, Valentina Vitali, Pascal Schneider, J. Jelle Lever, Janine Schweier, Anne Kempel, Niklaus E. Zimmermann, Philipp Brun, Jürgen Bauhus, Micah Wilhelm, Alessandra Bottero   +18 more
wiley   +1 more source

Inhibition of phloem loading by sulfite affects sugar distribution in pea leaves

Acta Societatis Botanicorum Poloniae, 2014
Under the influence of sulfite, changes in the rate of 14CO2 fixation, 14C-sucrose uptake and sugar content of the apoplastic and intracellular spaces of pea leaves varied according to the time of treatment and the anion concentration used. The greatest
Gabriela Lorenc-Plucińska, Hubert Ziegler   +1 more
doaj   +1 more source

Phloem Loading: How Leaves Gain Their Independence [PDF]

BioScience, 2006
Abstract The transition from sink to source status is one of the key events in leaf development. When a leaf is about half grown, it stops importing phloem-mobile nutrients from the rest of the plant and begins to export its own products of photosynthesis.
openaire   +1 more source

Nanogram amounts of salicylic acid produced by the rhizobacterium Pseudomonas aeruginosa 7NSK2 activate the systemic acquired resistance pathway in bean [PDF]

, 1999
Root colonization by specific nonpathogenic bacteria can induce a systemic resistance in plants to pathogen infections. In bean, this kind of systemic resistance can be induced by the rhizobacterium Pseudomonas aeruginosa 7NSK2 and depends on the ...
Audenaert, Kris, Buchala, Antony, Capiau, Kristof, De Meyer, Geert, Höfte, Monica, Métraux, Jean-Pierre   +5 more
core   +2 more sources

An atlas of plant selenium metabolism

New Phytologist, EarlyView.
Summary Selenium (Se) is not only a rare and toxic element but also an essential micronutrient for humans and animals that is often in short supply. Terrestrial plants do not require Se, but it can have growth‐promoting or negative effects, depending on the exposure level.
Jeroen van der Woude, Mark G. M. Aarts, Michela Schiavon, Antony van der Ent   +3 more
wiley   +1 more source

Overexpression of plasma membrane SUT1 in poplar alters lateral sucrose partitioning in stem and promotes leaf necrosis

Plant Direct
In Populus and many other tree species, photoassimilate sucrose diffuses down a concentration gradient via symplastically connected mesophyll cells to minor vein phloem for long‐distance transport.
Liang‐Jiao Xue, Moh'd I. Hozain, Christopher J. Frost, Afraz Talebi, Batbayar Nyamdari, Kavita B. Aulakh, Ran Zhou, Scott A. Harding, Chung‐Jui Tsai   +8 more
doaj   +1 more source

Transcript Profiling Identifies NAC-Domain Genes Involved in Regulating Wall Ingrowth Deposition in Phloem Parenchyma Transfer Cells of Arabidopsis thaliana

Frontiers in Plant Science, 2018
Transfer cells (TCs) play important roles in facilitating enhanced rates of nutrient transport at key apoplasmic/symplasmic junctions along the nutrient acquisition and transport pathways in plants.
Yuzhou Wu, Jiexi Hou, Fen Yu, Suong T. T. Nguyen, Suong T. T. Nguyen, David W. McCurdy   +5 more
doaj   +1 more source

Sucrose transporters and plasmodesmal regulation in passive phloem loading [PDF]

Journal of Integrative Plant Biology, 2017
AbstractAn essential step for the distribution of carbon throughout the whole plant is the loading of sugars into the phloem in source organs. In many plants, accumulation of sugars in the sieve element‐companion cell (SE‐CC) complex is mediated and regulated by active processes.
openaire   +2 more sources